The decision for de Fougerolles to leave was not her own, but a choice made by the production team and writers. The reasons included:

Helene's absence from the series is disappointing - Facebook

: The showrunners, including Clothilde Jamin , felt that once the two leads finally acknowledged their feelings, the narrative tension would diminish. They opted for a "clean break" rather than a slow exit to allow for the immediate introduction of a new partner.

2022---balthazar--how-is-the-absence-of-h-l-ne-de-fougerolles-explained-in-season-4- Today

The decision for de Fougerolles to leave was not her own, but a choice made by the production team and writers. The reasons included:

Helene's absence from the series is disappointing - Facebook The decision for de Fougerolles to leave was

: The showrunners, including Clothilde Jamin , felt that once the two leads finally acknowledged their feelings, the narrative tension would diminish. They opted for a "clean break" rather than a slow exit to allow for the immediate introduction of a new partner. including Clothilde Jamin